search for: xgt_desc_struct

i386 allmodconfig arch/i386/power/cpu.c: In function '__save_processor_state': arch/i386/power/cpu.c:29: warning: passing argument 1 of 'paravirt_ops.store_gdt' from incompatible pointer type arch/i386/power/cpu.c:30: warning: passing argument 1 of 'paravirt_ops.store_idt' from incompatible pointer type arch/i386/power/cpu.c: In function

i386 allmodconfig arch/i386/power/cpu.c: In function '__save_processor_state': arch/i386/power/cpu.c:29: warning: passing argument 1 of 'paravirt_ops.store_gdt' from incompatible pointer type arch/i386/power/cpu.c:30: warning: passing argument 1 of 'paravirt_ops.store_idt' from incompatible pointer type arch/i386/power/cpu.c: In function

...nopara_load_tr_desc(void) +{ + __asm__ __volatile__("ltr %w0"::"q" (GDT_ENTRY_TSS*8)); +} + +static fastcall void nopara_load_ldt_desc(void) +{ + __asm__ __volatile__("lldt %w0"::"q" (GDT_ENTRY_LDT*8)); +} + +static fastcall void nopara_load_gdt(const struct Xgt_desc_struct *dtr) +{ + __asm__ __volatile("lgdt %0"::"m" (*dtr)); +} + +static fastcall void nopara_load_idt(const struct Xgt_desc_struct *dtr) +{ + __asm__ __volatile("lidt %0"::"m" (*dtr)); +} + +static fastcall void nopara_store_gdt(struct Xgt_desc_struct *dtr) +{ + _...

...nopara_load_tr_desc(void) +{ + __asm__ __volatile__("ltr %w0"::"q" (GDT_ENTRY_TSS*8)); +} + +static fastcall void nopara_load_ldt_desc(void) +{ + __asm__ __volatile__("lldt %w0"::"q" (GDT_ENTRY_LDT*8)); +} + +static fastcall void nopara_load_gdt(const struct Xgt_desc_struct *dtr) +{ + __asm__ __volatile("lgdt %0"::"m" (*dtr)); +} + +static fastcall void nopara_load_idt(const struct Xgt_desc_struct *dtr) +{ + __asm__ __volatile("lidt %0"::"m" (*dtr)); +} + +static fastcall void nopara_store_gdt(struct Xgt_desc_struct *dtr) +{ + _...

...#define __ASM_PARAVIRT_H /* Various instructions on x86 need to be replaced for * para-virtualization: those hooks are defined here. */ +#include <linux/linkage.h> + +#ifndef CONFIG_PARAVIRT #include <asm/no_paravirt.h> +#else + +#ifndef __ASSEMBLY__ +struct thread_struct; +struct Xgt_desc_struct; +struct paravirt_ops +{ + unsigned int kernel_rpl; + + /* All the function pointers here are declared as "fastcall" + so that we get a specific register-based calling + convention. This makes it easier to implement inline + assembler replacements. */ + + void (fastcall *cpuid)(...

Hi Jeremy, all, Sorry this took so long, spent last week in Japan at OSDL conf then netconf. After several false starts, I ended up with a very simple implementation, which clashes significantly with your work since then 8(. I've pushed the patches anyway, but it's going to be significant work for me to re-merge them, so I wanted your feedback first. The first patch simply changes

Hi Jeremy, all, Sorry this took so long, spent last week in Japan at OSDL conf then netconf. After several false starts, I ended up with a very simple implementation, which clashes significantly with your work since then 8(. I've pushed the patches anyway, but it's going to be significant work for me to re-merge them, so I wanted your feedback first. The first patch simply changes

OK, here it is. Benchmarks still coming. This is against Andi's 2.6.18-rc7-git3 tree, and replaces the patches between (and not including) i386-pda-asm-offsets and i386-early-fault. One patch is identical, one is mildly modified, the rest are re-implemented but inspired by Jeremy's PDA work. Thanks, Rusty. -- Help! Save Australia from the worst of the DMCA: http://linux.org.au/law

OK, here it is. Benchmarks still coming. This is against Andi's 2.6.18-rc7-git3 tree, and replaces the patches between (and not including) i386-pda-asm-offsets and i386-early-fault. One patch is identical, one is mildly modified, the rest are re-implemented but inspired by Jeremy's PDA work. Thanks, Rusty. -- Help! Save Australia from the worst of the DMCA: http://linux.org.au/law

...nt msr, int *err); - int (*write_msr)(unsigned int msr, u64 val); - - u64 (*read_tsc)(void); - u64 (*read_pmc)(void); - unsigned long long (*sched_clock)(void); - unsigned long (*get_cpu_khz)(void); - - /* Segment descriptor handling */ - void (*load_tr_desc)(void); - void (*load_gdt)(const struct Xgt_desc_struct *); - void (*load_idt)(const struct Xgt_desc_struct *); - void (*store_gdt)(struct Xgt_desc_struct *); - void (*store_idt)(struct Xgt_desc_struct *); - void (*set_ldt)(const void *desc, unsigned entries); - unsigned long (*store_tr)(void); - void (*load_tls)(struct thread_struct *t, unsigned int cp...

...nt msr, int *err); - int (*write_msr)(unsigned int msr, u64 val); - - u64 (*read_tsc)(void); - u64 (*read_pmc)(void); - unsigned long long (*sched_clock)(void); - unsigned long (*get_cpu_khz)(void); - - /* Segment descriptor handling */ - void (*load_tr_desc)(void); - void (*load_gdt)(const struct Xgt_desc_struct *); - void (*load_idt)(const struct Xgt_desc_struct *); - void (*store_gdt)(struct Xgt_desc_struct *); - void (*store_idt)(struct Xgt_desc_struct *); - void (*set_ldt)(const void *desc, unsigned entries); - unsigned long (*store_tr)(void); - void (*load_tls)(struct thread_struct *t, unsigned int cp...

...mmu.h> extern struct desc_struct cpu_gdt_table[GDT_ENTRIES]; -DECLARE_PER_CPU(struct desc_struct, cpu_gdt_table[GDT_ENTRIES]); - -#define get_cpu_gdt_table(_cpu) (per_cpu(cpu_gdt_table,_cpu)) DECLARE_PER_CPU(unsigned char, cpu_16bit_stack[CPU_16BIT_STACK_SIZE]); @@ -29,6 +26,11 @@ struct Xgt_desc_struct { extern struct Xgt_desc_struct idt_descr, cpu_gdt_descr[NR_CPUS]; +static inline struct desc_struct *get_cpu_gdt_table(unsigned int cpu) +{ + return ((struct desc_struct *)cpu_gdt_descr[cpu].address); +} + #define load_TR_desc() __asm__ __volatile__("ltr %w0"::"q" (GDT_...

...mmu.h> extern struct desc_struct cpu_gdt_table[GDT_ENTRIES]; -DECLARE_PER_CPU(struct desc_struct, cpu_gdt_table[GDT_ENTRIES]); - -#define get_cpu_gdt_table(_cpu) (per_cpu(cpu_gdt_table,_cpu)) DECLARE_PER_CPU(unsigned char, cpu_16bit_stack[CPU_16BIT_STACK_SIZE]); @@ -29,6 +26,11 @@ struct Xgt_desc_struct { extern struct Xgt_desc_struct idt_descr, cpu_gdt_descr[NR_CPUS]; +static inline struct desc_struct *get_cpu_gdt_table(unsigned int cpu) +{ + return ((struct desc_struct *)cpu_gdt_descr[cpu].address); +} + #define load_TR_desc() __asm__ __volatile__("ltr %w0"::"q" (GDT_...

Seems to work OK for native and Xen. I had to play a bit with the paravirt-sched-clock patch to deal with the VMI changes. Zach, can you check that it still works? Thanks, J

Seems to work OK for native and Xen. I had to play a bit with the paravirt-sched-clock patch to deal with the VMI changes. Zach, can you check that it still works? Thanks, J

.../mmu.h> extern struct desc_struct cpu_gdt_table[GDT_ENTRIES]; -DECLARE_PER_CPU(struct desc_struct, cpu_gdt_table[GDT_ENTRIES]); - -#define get_cpu_gdt_table(_cpu) (per_cpu(cpu_gdt_table,_cpu)) DECLARE_PER_CPU(unsigned char, cpu_16bit_stack[CPU_16BIT_STACK_SIZE]); @@ -29,6 +26,8 @@ struct Xgt_desc_struct { extern struct Xgt_desc_struct idt_descr, cpu_gdt_descr[NR_CPUS]; +#define get_cpu_gdt_table(_cpu) ((struct desc_struct *)cpu_gdt_descr[(_cpu)].address) + #define load_TR_desc() __asm__ __volatile__("ltr %w0"::"q" (GDT_ENTRY_TSS*8)) #define load_LDT_desc() __asm__ __vola...

.../mmu.h> extern struct desc_struct cpu_gdt_table[GDT_ENTRIES]; -DECLARE_PER_CPU(struct desc_struct, cpu_gdt_table[GDT_ENTRIES]); - -#define get_cpu_gdt_table(_cpu) (per_cpu(cpu_gdt_table,_cpu)) DECLARE_PER_CPU(unsigned char, cpu_16bit_stack[CPU_16BIT_STACK_SIZE]); @@ -29,6 +26,8 @@ struct Xgt_desc_struct { extern struct Xgt_desc_struct idt_descr, cpu_gdt_descr[NR_CPUS]; +#define get_cpu_gdt_table(_cpu) ((struct desc_struct *)cpu_gdt_descr[(_cpu)].address) + #define load_TR_desc() __asm__ __volatile__("ltr %w0"::"q" (GDT_ENTRY_TSS*8)) #define load_LDT_desc() __asm__ __vola...

The following patches introduce the core infrastructure needed to paravirtualize the 32-bit x86 Linux kernel. This is done by moving virtualization sensitive insn's or code paths to a function table, paravirt_ops. This structure can be populated with hypervisor specific calls or native stubs and currently support running on bare metal, VMI, Xen, or Lhype. These patches apply to

The following patches introduce the core infrastructure needed to paravirtualize the 32-bit x86 Linux kernel. This is done by moving virtualization sensitive insn's or code paths to a function table, paravirt_ops. This structure can be populated with hypervisor specific calls or native stubs and currently support running on bare metal, VMI, Xen, or Lhype. These patches apply to

Hi Andrew, This patch series adds to the end of the existing i386-gdt-cleanups patches: allow-per-cpu-variables-to-be-page-aligned.patch i386-gdt-cleanups-use-per-cpu-variables-for-gdt-pda.patch i386-gdt-cleanups-use-per-cpu-gdt-immediately-upon-boot.patch i386-gdt-cleanups-use-per-cpu-gdt-immediately-upon-boot-fix.patch i386-gdt-cleanups-clean-up-cpu_init.patch